From 1cb0c5289093305a0f28b3371fd38e792d9617e1 Mon Sep 17 00:00:00 2001
From: Hank Shen <swh@admpub.com>
Date: Mon, 9 Oct 2023 13:20:51 +0800
Subject: update

---
 errors.go | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 errors.go

diff --git a/errors.go b/errors.go
new file mode 100644
index 0000000..9d9833d
--- /dev/null
+++ b/errors.go
@@ -0,0 +1,55 @@
+package securecookie
+
+import "errors"
+
+func IsValueTooLong(err error) bool {
+	return errors.Is(err, errEncodedValueTooLong) || errors.Is(err, errValueToDecodeTooLong)
+}
+
+func IsEncodedValueTooLong(err error) bool {
+	return errors.Is(err, errEncodedValueTooLong)
+}
+
+func IsDecodeValueTooLong(err error) bool {
+	return errors.Is(err, errValueToDecodeTooLong)
+}
+
+func IsNoCodecs(err error) bool {
+	return errors.Is(err, errNoCodecs)
+}
+
+func IsHashKeyNotSet(err error) bool {
+	return errors.Is(err, errHashKeyNotSet)
+}
+
+func IsBlockKeyNotSet(err error) bool {
+	return errors.Is(err, errBlockKeyNotSet)
+}
+
+func IsTimestampInvalid(err error) bool {
+	return errors.Is(err, errTimestampInvalid)
+}
+
+func IsTimestampTooNew(err error) bool {
+	return errors.Is(err, errTimestampTooNew)
+}
+
+func IsTimestampExpired(err error) bool {
+	return errors.Is(err, errTimestampExpired)
+}
+
+func IsDecryptionFailed(err error) bool {
+	return errors.Is(err, errDecryptionFailed)
+}
+
+func IsValueNotByte(err error) bool {
+	return errors.Is(err, errValueNotByte)
+}
+
+func IsValueNotBytePtr(err error) bool {
+	return errors.Is(err, errValueNotBytePtr)
+}
+
+func IsMacInvalid(err error) bool {
+	return errors.Is(err, ErrMacInvalid)
+}
-- 
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